kernel_optimize_test/fs/proc
Eric W. Biederman ee992744ea proc: rewrite do_task_stat to correctly handle pid namespaces.
Currently (as pointed out by Oleg) do_task_stat has a race when calling
task_pid_nr_ns with the task exiting.  In addition do_task_stat is not
currently displaying information in the context of the pid namespace that
mounted the /proc filesystem.  So "cut -d' ' -f 1 /proc/<pid>/stat" may not
equal <pid>.

This patch fixes the problem by converting to a single_open seq_file show
method.  Getting the pid namespace from the filesystem superblock instead of
current, and simply using the the struct pid from the inode instead of
attempting to get that same pid from the task.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:23 -08:00
..
array.c proc: rewrite do_task_stat to correctly handle pid namespaces. 2008-02-08 09:22:23 -08:00
base.c proc: rewrite do_task_stat to correctly handle pid namespaces. 2008-02-08 09:22:23 -08:00
generic.c proc: detect duplicate names on registration 2008-02-08 09:22:23 -08:00
inode-alloc.txt
inode.c proc: remove MODULE_LICENSE 2008-02-08 09:22:23 -08:00
internal.h proc: rewrite do_task_stat to correctly handle pid namespaces. 2008-02-08 09:22:23 -08:00
kcore.c is_vmalloc_addr(): Check if an address is within the vmalloc boundaries 2008-02-05 09:44:14 -08:00
kmsg.c
Makefile [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
mmu.c fs/proc/mmu.c: headers butchery 2007-10-17 08:42:48 -07:00
nommu.c
proc_devtree.c [POWERPC] Make struct property's value a void * 2007-04-13 03:55:18 +10:00
proc_misc.c proc: loadavg reading race 2008-02-06 10:41:04 -08:00
proc_net.c [ATM]: Oops reading net/atm/arp 2008-01-28 15:01:36 -08:00
proc_sysctl.c Fix pointer mismatches in proc_sysctl.c 2007-10-25 15:16:49 -07:00
proc_tty.c proc: simplify function prototypes 2008-02-08 09:22:23 -08:00
root.c proc: fix proc_dir_entry refcounting 2007-12-05 09:21:20 -08:00
task_mmu.c maps4: make page monitoring /proc file optional 2008-02-05 09:44:17 -08:00
task_nommu.c restrict reading from /proc/<pid>/maps to those who share ->mm or can ptrace pid 2008-01-02 13:13:27 -08:00
vmcore.c [PATCH] i386: Allow i386 crash kernels to handle x86_64 dumps 2007-05-02 19:27:09 +02:00